How To Use Solar Panels Directly Without Battery - Off-Grid 

Thanks rick!

Yes, the losses are negligible. You also loose efficiency from Sun heat warming the panels, and loose efficiency by voltage conversion from dc to ac. My “rule of thumb”, is, I don’t increase voltage to 120/240v unless I’m going to sell it to someone. I live off-grid. I pay $0.25 cents per watt on my panels, so I add one more panel to make up the losses. In my example, the motor is a well pump. No inverter, or battery necessary. It runs in day light, fill the holding tank until the next Sun. A battery is a buffer. A tank is a buffer. Ph + Poh is also a buffer. Buffers come in many flavors!

Like I said, lower the panel volts from 18v to 15v by using diodes(no inverter faults), and it bloody works!

When the inverter get's hot, it should shut down itself in order to 'save itself' from overheating. Santansolar is great for panels. Thanks for sharing your setup.

hi, Do you mind sharing a little more about your setup? I am planning on running a pump without battery just like you have.@@offgrid-goo-roo

@@EspitiaRiman Hello. Please tell me about the application: GPM Flow needed? HP? Have you selected a pump?

Chicken satays with peanut sauce! I'm jealous. I recommend watching some of my videos; they will make more sense as a whole.

If you have battery, pass the output of the solar panel through voltage controller. Connect the battery and inverter to it. The voltage controller ensures that the battery is not over charged. From the inverter, connect your load. If you don't have battery, pass the output of the solar panel to a bulk converter (DC to DC converter). Connect the output of the bulk converter to an inverter. The bulk converter ensures that stable voltage is fed to the inverter. Connect your load to the inverter. Follow the calculations.

Love you too!

my problem is, when it gets dark or in the evening..

Thanks for sharing!

Then it turns off...

Thanks for the like and the sub!

Thanks for adding to the conversation!

This is useful to me am very inspired

Thanks for the sub!

No, you need a charge controller the charge a battery.

I don't have experience with wind power generation. I feel the residential units are not worth it. But that's my opinion.

If you start pumps, then I would recommend low frequency. They also last longer. High frequency inverters can power a load X2 their rating for a surge. This should be mentioned in the data sheet of the inverter. I recommend using a surge clamp Amp meter and measure the surge on your pump. If it falls under the max surge capability of the inverter it's ok. However, if you don't have a battery, it's not going to work. The surge power has to come from somewhere. So you will have to install batteries as well.

That is correct.

That's interesting, do you have any video or diagram demonstrating that.

@@OlusolaAkanni The rectifier diodes are usually combined in a four- legged component called full bridge rectifier There are two contacts for AC input and two for + and - You can directly solder wires to + and - But you can also remove the component and bridge over one~ to + and the other~to -

It should still run with the rectifier installed. even less than 100vdc is dangerous

@@mickwolf1077 Yes, but there will be an unnecessary Voltage drop with the diodes and by removing them you can easily determine the polarity for your plug. Working on this you have to be extra careful!! Plug in the panels after you really completed everything!!!

I believe it will be possible. It will also depend on the current of the pump. Maybe a buck converter that converts the 56V battery to 48V will be necessary.

No, you should not do this. You need a 48V inverter.

@cleversolarpower thank you for taking the time to reply. What is the adverse affect of doing this? Unequal charge?

I have made a video about that. Search: 'cleversolarpower fuses size'

You can put more inverters in parallel if they are compatible with multiple parallel units.

Check the power rating of the fan. I would size it to twice the size.

Check the last method mentioned in the video.

Checkout my video 'complete off grid system'

@@cleversolarpower does not answer my question ?

A buck converter is about 90% efficient. Same as an inverter. But an inverter also has idle power consumption. I recommend using a buck converter if you can.

It'd take a lot of panels, there are some specific split systems that are designed to run off PV DC supply.

It will be a few thousand, so nah. What you can do is get a grid-tied solar system to offset the consumption of your AC. This would be the best solution for of-setting your consumption if you are grid tied.

I'm sure you meant a 1,200W inverter. Try plugging it into the grid and measuring the power consumption. Also, check the manual for the power consumption.

It depends where you live. Some inverters are not available outside of the US. So I would check local solar power shops if you want to pay for expertise and warranty. or local webshops. Last on the list would be AliExpress or similar.

@@cleversolarpower yes I am ready to pay

Nowadays, it might be cheaper to get a lithium battery, though. 12V 100Ah, is all you need for $260.

I have been doing that for 3 years now with large used truck battery that still holds a charge and it works well for me.

Solar -> MPPT charge controller -> Battery -> inverter. In this order.

@@cleversolarpower will it work without the charge controller?

It doesn't 😉

Good answer. You said without a batter, but you could also could have a night time setup. At night just have a power station just for lighting. 73​@@cleversolarpower

Indeed, some of them do. I figured this out later after making the video.

Inverters can turn 12 volts DC into 120 or 240 volts AC. It's probably a single phase motor not split phase.

Through the buck converter. Solar panel -> buck converter -> inverter. I just use this as an example. It's better to use a DC pump for efficiency.

If you are in the us, i recommend santansolar.

You don't. That's why off-gridders use batteries.

If you go to bed when it gets dark, you’d hardly notice 😃 (great big smile right here)

I might do this in a future video. Thanks for the suggestion. With 10kW, do you mean solar panels or battery power?

I forgot to add that one! Thanks for mentioning.

Absolutely !

Yes, and the price will depend on the load. Question is that it will be cost-effective or not.

Can you post a diagram of this please?

​@@squillo01 - The only thing I can use to make a diagram is paper and a pen. Then I can take a picture of my drawing, but to where should I send it ? ? It should not be so difficult to understand: Components: PV Solar panels in series (How many panels depends on the nominal voltage of the heating element) I use an 220 Volt heating element. My PV solar panels has Voc = 40.6 Volt and Vmp = 34.6 Volt Six solar panels in series gives Total Vmp = 6 x 34.6 Volt = 207.6 Volt 207.6 Volt is slightly below the the nominal voltage of the heating element which is what we want. To avoid overload the voltage from the solar panels should never excede the nominal voltage of the heating element. On the other side it should not be too low either because the energy deposited in the heating element is dependent on the voltage raised to the second power ( P = U * I = U * U / R ) To prevent the water in the tank from boiling, I use a Solid State Relay (controlled by a thermo sensor in the water tank). Since the Solar Panels Open Circuit Voltage is 6 * 40.6 Volt = 243.6 Volt, which is higher than the maximum DC Voltage breaking capacity of the Solid State Relays, I use two Solid State Relays in series, each with a max braking capacity of 220 Volt DC - in that way I get a braking capacity of 2 * 220 Volt DC = 440 Volt DC. ### - OBS! Remember to mount a Heat Sink on each Solid State Relay - otherwise You have no Solid State Relays - ### ### - And remember the heat transfer paste between the Solid State Relay and the Heat Sink - ### And finally, we must remember the high voltage DC safety switch and a fuse. All components in a series connection Why place a fuse in the circuit when there is no voltage source or energy source in the circuit that will be able to break the fuse. The only possible overload could arise from an external voltage source, for example a lightning strike. What is important is to use such a large cable cross-section that the effect from the solar panels will not / never overload the cables. If You still need a diagram, please send me your email address ;-) Diagram: | [pv] | [pv] | [pv] | [pv] | [pv] | [pv] | | [Sw] : high voltage DC safety switch | [fuse] | | [Solid State Relay]|[HeatSink] | > - - [Arduino] - - - connected to a thermo sensor in the water tank. [Solid State Relay]|[HeatSink] | [R] : Resistor = the Heating Element in my water tank | Ohm's Law: U = R * I I = U / R R = U / I P = U * I or P = U * U / R or P = R * I * I

Right 😂

How it done? Kindly share the knowledge

In the good old days a very long wire, I believe.. But this fellow appears fanciful

im not born to line your pockets the knowledge is all out there was all made and designed in the 1800,s@@adesiyanishola4489

I don't agree. Diodes lose power that is dissipated as heat resulting in power loss. It's more efficient to have a DC to DC converter.

Thanks for sharing. Do you automatically start the generator when the battery is low?

Actually, most tool motors run on DC just fine, it's just more dangerous at the required DC due to arcing. I too have a diesel that runs a DC charger to charge up my lifepo4's but it's too noisy at night, how do you solve the noise if it's an issue? Mine sounds like a helicopter thumping away under load. I'd like to make some kind of concrete enclosure or have it below ground or both.

​@@mickwolf1077 you just need good quality ear plugs, that's it

Good for you buddy, you also gotta tote the thing around, buy gas for it, listen to the loud ass thing, what do you want, a cookie? Also they sell adapters that convert DC to AC so there you go

You're living in the past!

Or if a cloud rolls in whatever your running just shut off. Kinda pointless without battery's.

​@@johnmal5975Well if you have a well and a watering trough for livestock or a water tower the solar panel can pump water whenever it can and needs to fill the tank. The tank should hold enough to not run out before the sun returns.

Try getting out to irrigated farm lands and tell the farmers their direct drive solar pumps don't work

Until you get a week straight of clouds not practical for home use. I would imagine they have some sort of backup plan with battery's or generator for that scenario. One could have an insane amount of storage tanks as well and gravity feed however you would spend the same. To each his own. @@robwesterly5785

They use water pumps like these a lot in asia. I've seen them being used and they work great. For home use, it could be a fountain in a pond or an air pump.

Running from solar directly is the most efficient way of powering a load.

Limited use not useless.

What do you expect the video to be about?

Who knows, maybe we can start a trend 🤷🏻‍♂️

Sex is better in the dark they say! Lol😮